Writing instrument



FIG. 1 is a perspective view of a writing instrument;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left elevation view thereof;

FIG. 5 is a right elevation view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a perspective view thereof having one end uncapped and shown without the cap for convenience;

FIG. 9 is a front elevation view thereof;

FIG. 10 is a rear elevation view thereof;

FIG. 11 is a left elevation view thereof;

FIG. 12 is a right elevation view thereof;

FIG. 13 is a top plan view thereof;

FIG. 14 is a bottom plan view thereof;

FIG. 15 is a perspective view thereof having both ends uncapped and shown without both caps for convenience;

FIG. 16 is a front elevation view thereof;

FIG. 17 is a rear elevation view thereof;

FIG. 18 is a left elevation view thereof;

FIG. 19 is a right elevation view thereof;

FIG. 20 is a top plan view thereof; and,

FIG. 21 is a bottom plan view thereof.

The broken lines in the drawings illustrate portions of the writing instrument which form no part of the claimed design. 

CLAIM The ornamental design for the writing instrument, as shown and described. 